Add RD prefilters

• adding a new file with prefilters (upfront+pvs+GEC, upfront+pvs+GEC+topo, upfront+pvs) to be used by RD lines (inspired by and stolen from charm, many thanks to the charm team!)
• commenting out lifetime fit for KS0/L0 in rdbuilder_thor due to ongoing issues with not-converging fits
• change in CODEOWNERS for rd folder, assigned to current RD conveners and migration coordinator
• basic particles and combiners from !1282 (merged) added
• prompt pions without RICH requirement added
• trackchi2 and ghostprob cuts commented out for now

added RD RTA hlt2 selection labels

requested review from @fevolle, @yafan, and @vlisovsk

assigned to @msaur

Hi @vlisovsk, I did a few changes to rdbuilder_thor, namely commenting out lifetime fit for V0 particles and then uncommented prompt particles as they are required by !1195 (merged) (in fact they are already uncommented in !1195 (merged), but possible some ideas if they should be tuned?). Would you have some comments on that?

For the prefilters, I saw that the SL group has them in their init.py: https://gitlab.cern.ch/lhcb/Moore/-/blob/master/Hlt/Hlt2Conf/python/Hlt2Conf/lines/semileptonic/builders/__init__.py , – is there a difference between that choice and your choice of placing in a dedicated script?

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• c0f61ef6 - added topo prefilter

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• e082cd71 - renamed file, added prompt filters and basic builders from !1282 (merged)

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• a6d4ee6f - fixing imports

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• aab5894c - fix

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• a8759542 - added a possibility to pass PID cut to prompt pions_no_rich

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• 4980e850 - some fixes to documentation

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Can you please also clean up the rdbuilders from any GHOSTPROB and track CHI2NDOF cuts? Thanks.

mentioned in merge request !1195 (merged)

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• d97abd56 - removed ghostprob and chi2dof cuts from tracks

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• 177da490 - Prepare Moore v53r4
• b75bd906 - Update references for Rec!2668 (merged)
• 5ef66489 - Add Hlt2 BandQ ccbar to ppbar lines
• a23b2081 - cleanup use of conddb and conditionderivation in TrackBasedElectronShowerAlg

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mentioned in commit 80cf9358

mentioned in merge request !1269 (merged)